Developed in 1948, the S-52-1 is a continuation of the S-51 series and received FAA type certification in the same year. The helicopter was commonly used in American operations in Korea [Ref 316].

Overview

Data on design, manufacture and status

Configuration

Primary flight and mechanical characteristics

VTOL type: Helicopter

Lift configuration: Single main rotor

Dedicated control device: Tail rotor

Crew required: 1-2

Crew seating: Side-by-side

Landing gear: Wheels (non-retractable)

Layout and Dimensions

Data on aircraft size

Overall Dimensions
Overall Height:  
Overall Length:  
Overall Width: 9.75 m 32.0 ft
Airframe Dimensions
Airframe Length: 8.36 m 27.4 ft
Airframe Width:  
Airframe Height:  
Landing Gear Dimensions
Landing Gear Base:  
Landing Gear Track:  
Cabin Dimensions
Cabin Internal Height:  
Cabin Internal Length:  
Cabin Internal Width:  

Weights and Performance

Data on aircraft weight and flight characteristics

Cruise Speed: 80 mph (128.748 km/h)

Weights
Max Gross Weight (ground): 953 kg 2,100 lb
Max Gross Weight (airborne):  
Max Take-off Weight: 953 kg 2,100 lb
Empty Weight:  
Useful Load:  
Empty Weight Fraction:  
Climb Performance
Max Rate of Climb: 5 m/s 1,001 fpm
Hover Performance
Hover Ceiling IGE:  
Hover Ceiling OGE:  
Limitations
Max Level Flight Speed:  
Never Exceed Speed:  
Service Ceiling: 3,505 m 11,500 ft
Range and Endurance
Max Range: 402 km 217 nm
Max Endurance:  

Engine Details

Aircraft powerplant (lift and/or propulsion)

Provided powerplant data is for uninstalled, sea level, static operations.

Powerplant
Number of engines: 1
Designation: Franklin 6V4-178-B3F reciprocating
Manufacturer: Franklin Engine Company
Normal Ratings
Max continuous:  
Take-off / rated: 133 kW 178 hp
Intermediate:  
Maximum:  
OEI Ratings
OEI contingency:  
OEI continuous:  
OEI 30-second:  
OEI intermediate:  

Primary Lift Device

Data on primary lift devices such as main rotors

Main Rotor Characteristics
Diameter: 9.75 m 32.00 ft
RPM:  
Direction of Rotation: Counterclockwise
Hub Type:
Main Rotor Blade Characteristics
Blade Construction:
Blade Chord:  
Blade Tip Geometry: Conventional
Blade Twist:  
Number of Blades: 3
Main Rotor Derived Characteristics
Disc Area: 74.72 m² 804.3 ft²
Disc Loading: 12.75 kg/m² 2.611 lb/ft²
Solidity:  
Main Rotor Blade Derived Characteristics
Blade area per blade:  
Tip Speed:  

Primary Control Device

Data on primary control devices such as tail rotors

Tail Rotor Characteristics
Diameter:  
Configuration: Pusher
Direction of Rotation: Top blade fwd
RPM:  
Tail Rotor Blade Characteristics
Number of Blades: 2
Blade Construction:  
Blade Chord:  
Blade Twist:  
Tail Rotor Derived Characteristics
Disc Area:  
Solidity:  
Tail Rotor Blade Derived Characteristics
Tip Speed:  
Blade Area (per blade):  

Related VFS Resources

Resources related to the S-52-1 , provided by the Vertical Flight Society.
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Related Public Resources

Resources related to the S-52-1 , provided by public sources across the internet.

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